Application

The equipment may be used for the following purposes:

1. Bridging Ethernet LANs over existing TDM (E1) telecom network.

2. Extending Ethernet networks utilizing TDM (E1) landline based telecom infrastructure.

3. Using telecom network of E1s / PDH / SDH microwave etc. carrying E1s to transport Ethernet data.

In all cases the equipment be always installed and used in pairs, with one terminal being installed at either end of  the network.

Features

• The maximum transmission rate of Ethernet data over E1 links is 32.768Mbit/s using 16 E1 links
• E1 supports three working modes of transmission. Un-Framed/Transparent, Framed (CCS) and Multiple Framed (CAS/PCM30) format
• Supports VCAT (virtual concatenation) and LCAS (link capacity adjustment scheme) protocol, and complies with ITU-T G.7042 specifications
• Mapping to E1 complies with ITU-T G.7043 and G.8040 specifications
• Supports differential delay of up to 120ms on E1 links
• Complies with IEEE 802.3 specifications
• Supports X.86, LAPS and HDLC transmission protocols
• Supports 100M full-duplex mode
• Configurable frame length 2036 bytes, maximum
• Supports GFP-F encapsulation complying with ITU-T G.7041
• Provide smooth adjustment of bandwidth
• Provides Loss of Frame alarms
• Provides error frame statistic
• Supports automatic removal and addition of E1 links
• Available with MAC address list filtration, learning, and updating functions
• A large external SDRAM buffering for handling data bursts
• E1 Interfaces support errors count
• Equipment supports two working modes, Internal clock and Network clock (Loop-timed clock)

Technical Specifications